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Wifi Setup with NetworkManager Client

Packages

The command to use is nmcli and is contained in the package network-manager.

apt-get install network-manager

This also install the command nmtui which is a text UI for the nmcli command.

Get Device Names

List the device names controlled by the NetworkManager.

nmcli device

Switch On Radio

To be sure switch on the radio.

nmcli radio wifi on

List the WiFi SID's

To list the available SID's with their signal strengths run this command.

nmcli device wifi list
Outputs i.e.: 
IN-USE  BSSID              SSID                             MODE   CHAN  RATE        SIGNAL  BARS  SECURITY    
*       38:10:D5:6F:6F:05  Stockholm                        Infra  6     195 Mbit/s  100     ▂▄▆█  WPA2        
        3A:10:D5:6F:6F:05  Oslo                             Infra  6     195 Mbit/s  100     ▂▄▆█  WPA2        
        4E:1B:86:C1:50:EA  H369A7F5AE9                      Infra  1     130 Mbit/s  80      ▂▄▆_  WPA2        
        4E:1B:86:C0:EB:B2  H369A7F5AE9                      Infra  1     130 Mbit/s  74      ▂▄▆_  WPA2        
        0C:8E:29:44:5F:9C  VRV9517445F9C                    Infra  11    195 Mbit/s  74      ▂▄▆_  WPA2        
        56:67:11:E0:9F:F4  Ziggo                            Infra  6     130 Mbit/s  67      ▂▄▆_  WPA2 802.1X 
        BC:0F:9A:5A:61:54  Helsinki                         Infra  10    270 Mbit/s  67      ▂▄▆_  WPA2        
        64:CC:22:43:4C:5E  VRV9517434C5E                    Infra  11    195 Mbit/s  67      ▂▄▆_  WPA2        
        FC:EC:DA:FD:C7:F0  Red.Net                          Infra  6     195 Mbit/s  60      ▂▄▆_  WPA2        
        92:5C:14:D1:D4:06  Ziggo                            Infra  6     130 Mbit/s  54      ▂▄__  WPA2 802.1X

Connect to a new SID

Connecting to new SID a password needs to be given.

```bash nmcli device wifi connect password 

## Reconnect to a SID

List the possible connection names.

```bash
nmcli connection

Outputs: 

NAME                UUID                                  TYPE      DEVICE  
Wired connection 1  dabde361-aeea-3073-95fa-10ff8fd16238  ethernet  enp39s0 
Stockholm           d0beba07-c95d-4e80-b769-e9b853ae9831  wifi      wlp37s0

Actual reconnect using this command.

nmcli connection up <connection-name>

Disconnect a Connection

To disconnect from a connection us this command.

nmcli connection down <connection-name>

Removing Existing Connection

To remove an existing connection use this command. 

nmcli connection delete <connection-name>